Iowa

• Adair 19001
  393 taxa Open ↗
• Adams 19003
  200 taxa Open ↗
• Allamakee 19005
  118 taxa Open ↗
• Appanoose 19007
  38 taxa Open ↗
• Audubon 19009
  225 taxa Open ↗
• Benton 19011
  21 taxa Open ↗
• Black Hawk 19013
  33 taxa Open ↗
• Boone 19015
  146 taxa Open ↗
• Bremer 19017
  24 taxa Open ↗
• Buchanan 19019
  16 taxa Open ↗

Showing 851–900 of 1,852 (native).

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  Hepatica nobilis Schreb. Native HENO2

  hepatica · Ranunculaceae 2 counties
• 
  Hepatica nobilis Schreb. var. acuta (Pursh) Steyerm. Native HENOA

  sharplobe hepatica · Ranunculaceae 2 counties
• 
  Heracleum maximum W. Bartram Native HEMA80

  common cowparsnip · Apiaceae 22 counties
• 
  Hesperostipa comata (Trin. & Rupr.) Barkworth Native HECO26

  needle and thread · Poaceae 3 counties
• 
  Hesperostipa comata (Trin. & Rupr.) Barkworth ssp. comata Native HECOC8

  needle and thread · Poaceae 3 counties
• 
  Hesperostipa spartea (Trin.) Barkworth Native HESP11

  porcupinegrass · Poaceae 38 counties
• 
  Heteranthera dubia (Jacq.) MacMill. Native HEDU2

  grassleaf mudplantain · Pontederiaceae 8 counties
• 
  Heteranthera limosa (Sw.) Willd. Native HELI2

  blue mudplantain · Pontederiaceae 2 counties
• 
  Heterotheca camporum (Greene) Shinners Native HECA16

  lemonyellow false goldenaster · Asteraceae 2 counties
• 
  Heterotheca camporum (Greene) Shinners var. camporum Native HECAC2

  lemonyellow false goldenaster · Asteraceae 2 counties
• 
  Heterotheca stenophylla (A. Gray) Shinners Native HEST3

  stiffleaf false goldenaster · Asteraceae 1 county
• 
  Heterotheca stenophylla (A. Gray) Shinners var. stenophylla Native HESTS

  stiffleaf false goldenaster · Asteraceae 1 county
• 
  Heterotheca villosa (Pursh) Shinners Native HEVI4

  hairy false goldenaster · Asteraceae 3 counties
• 
  Heterotheca villosa (Pursh) Shinners var. villosa Native HEVIV

  hairy false goldenaster · Asteraceae 1 county
• 
  Heuchera americana L. Native HEAM6

  American alumroot · Saxifragaceae 6 counties
• 
  Heuchera americana L. var. hirsuticaulis (Wheelock) Rosend., Butters & Lakela Native HEAMH

  American alumroot · Saxifragaceae 6 counties
• 
  Heuchera richardsonii R. Br. Native HERI

  Richardson's alumroot · Saxifragaceae 11 counties
• 
  Hibiscus laevis All. Native HILA2

  halberdleaf rosemallow · Malvaceae 5 counties
• 
  Hieracium gronovii L. Native HIGR3

  queendevil · Asteraceae 1 county
• ⚘
  Hieracium kalmii L. Native HIKA2

  Kalm's hawkweed · Asteraceae 4 counties
• 
  Hieracium longipilum Torr. Native HILO2

  hairy hawkweed · Asteraceae 4 counties
• 
  Hieracium scabrum Michx. Native HISC

  rough hawkweed · Asteraceae 2 counties
• 
  Hierochloe hirta (Schrank) Borbás Native HIHI

  northern sweetgrass · Poaceae 16 counties
• 
  Hierochloe hirta (Schrank) Borbás ssp. arctica (J. Presl) G. Weim. Native HIHIA

  northern sweetgrass · Poaceae 16 counties
• 
  Hippuris vulgaris L. Native HIVU2

  common mare's-tail · Hippuridaceae 1 county
• 
  Hordeum jubatum L. Native HOJU

  foxtail barley · Poaceae 50 counties
• 
  Hordeum jubatum L. ssp. jubatum Native HOJUJ

  foxtail barley · Poaceae 50 counties
• 
  Hordeum pusillum Nutt. Native HOPU

  little barley · Poaceae 15 counties
• 
  Hudsonia tomentosa Nutt. Native HUTO

  woolly beachheather · Cistaceae 1 county
• 
  Hudsonia tomentosa Nutt. var. tomentosa Native HUTOT

  woolly beachheather · Cistaceae 1 county
• 
  Humulus lupulus L. var. lupuloides E. Small Native HULUL

  common hop · Cannabaceae 1 county
• 
  Huperzia lucidula (Michx.) Trevis. Native HULU2

  shining clubmoss · Lycopodiaceae 2 counties
• 
  Hydrangea arborescens L. Native HYAR

  wild hydrangea · Hydrangeaceae 1 county
• 
  Hydrastis canadensis L. Native HYCA

  goldenseal · Ranunculaceae 2 counties
• 
  Hydrophyllum appendiculatum Michx. Native HYAP

  great waterleaf · Hydrophyllaceae 6 counties
• 
  Hydrophyllum canadense L. Native HYCA3

  bluntleaf waterleaf · Hydrophyllaceae 1 county
• 
  Hydrophyllum virginianum L. Native HYVI

  eastern waterleaf · Hydrophyllaceae 27 counties
• 
  Hydrophyllum virginianum L. var. virginianum Native HYVIV

  eastern waterleaf · Hydrophyllaceae 27 counties
• 
  Hypericum ascyron L. Native HYAS80

  great St. Johnswort · Clusiaceae 4 counties
• 
  Hypericum canadense L. Native HYCA7

  lesser Canadian St. Johnswort · Clusiaceae 2 counties
• 
  Hypericum gymnanthum Engelm. & A. Gray Native HYGY

  claspingleaf St. Johnswort · Clusiaceae 1 county
• 
  Hypericum hypericoides (L.) Crantz Native HYHY

  St. Andrew's cross · Clusiaceae 1 county
• 
  Hypericum hypericoides (L.) Crantz ssp. hypericoides Native HYHYH

  St. Andrew's cross · Clusiaceae 1 county
• 
  Hypericum majus (A. Gray) Britton Native HYMA2

  large St. Johnswort · Clusiaceae 4 counties
• 
  Hypericum mutilum L. Native HYMU

  dwarf St. Johnswort · Clusiaceae 4 counties
• 
  Hypericum prolificum L. Native HYPR

  shrubby St. Johnswort · Clusiaceae 2 counties
• 
  Hypericum punctatum Lam. Native HYPU

  spotted St. Johnswort · Clusiaceae 10 counties
• 
  Hypericum sphaerocarpum Michx. Native HYSP2

  roundseed St. Johnswort · Clusiaceae 6 counties
• 
  Hypoxis hirsuta (L.) Coville Native HYHI2

  common goldstar · Liliaceae 13 counties
• 
  Ilex decidua Walter Native ILDE

  possumhaw · Aquifoliaceae 1 county